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How to show product dimensions in Shopify

Updated 12 Oct 2026

Short answer

Shopify has no dimensions field you can show on the product page. The free ways are text in the description, a drawing in the photos, or a metafield your theme shows. RNS Product Visualizer draws the piece in 3D at the size the shopper picks, with width, depth and height labels.

Why shoppers still ask

A number like "36 x 18 x 30 in" leaves questions: which number is depth? Is the height with the legs? Will the 48 inch one fit under the window? When a product comes in several sizes, the shopper also has to find the right line for the size they picked. Every question that reaches your inbox is a sale waiting, and many shoppers don't ask; they leave.

The free ways

  1. In the description: add a line per size, always in the same order, and say which is which: "Width (side to side) 36 in · Depth (front to back) 18 in · Height 30 in".
  2. A drawing in the photos: add one image per product with the measurements drawn on it. Put it second or third, so shoppers find it.
  3. A metafield on the page: Settings › Custom data › Products › add a definition such as "Dimensions" (single line text). Fill it in on each product, then in the theme editor add a Text block to the product template and connect it to the metafield (the "connect dynamic source" button). Some themes can show a variant metafield that changes with the size; check yours.
  4. A size chart page: one page with every size of a product line, linked from the product page.

Where the free ways fall short

  • The text or drawing doesn't change when the shopper picks another size, so they read the wrong line.
  • Numbers alone don't show how big something is; "18 in deep" means little until you see it next to a person or a floor grid.
  • A drawing per size is a lot of images to make and keep up to date when sizes change.
  • Shoppers still mix up width and depth, so the questions keep coming.

An easier way: RNS Product Visualizer

RNS Product Visualizer adds a Size preview block to your product page. The shopper picks a width, depth or colour with your theme's own buttons and a 3D piece redraws at that size, with W, D and H labels on a floor grid; a tap on a label explains which side it is. The app's AI reads your product options and fills in the numbers; you check and accept. No 3D files, no theme code. Free for 3 products; Pro $19 a month for every product; Plus $39 adds detailed legs, edges, handles and wood.

See RNS Product Visualizer

Tips that help either way

  • Say the order once and keep it: width × depth × height.
  • Give the height with legs and the inside size where it matters (a shelf's usable depth, a drawer's inside width).
  • Use the unit your shoppers use; add the other one in brackets for shoppers abroad.
  • Answer the size question in the same words on every product, so shoppers learn it once.
Do it in one clickProduct VisualizerSee app